This ebook is a deep-dive companion to the Core Java interview question series published on Medium.

It focuses on how Java actually works under the hood, covering:

1. Core Java fundamentals that interviewers repeatedly test
2. JVM internals, memory model, and garbage collection basics
3. Collections framework internals and performance trade-offs
4. Concurrency and multithreading concepts with real scenarios
5. Tricky edge cases and interview traps most developers miss
6. Modern Java features (Java 8 → Java 25 LTS) explained clearly

Every topic is explained through interview questions, not textbook chapters.

👉 Check this video before purchase - Upcoming

👉 Check this for the entire list of questions covered - question bank